OpenPGP Component

Properties Methods Events Configuration Settings Errors

The OpenPGP component is used to encrypt/decrypt and sign/verify PGP messages.

Syntax

nsoftware.IPWorksOpenPGP.Openpgp

Remarks

The OpenPGP component supports encrypting/decrypting and signing/verifying OpenPGP messages in the format specified by RFC 4880.

The Encrypt, Sign, and SignAndEncrypt methods are used to create a message to be sent to your partner. You can additionally create messages bound for multiple recipients with different keys, simultaneously encrypt and compress with the most popular compression algorithms, and control other aspects such as the encrypting algorithm to use.

When a message is received, the Decrypt, VerifySignature, and DecryptAndVerifySignature methods are used to process the incoming message.

The Keys property holds the key (with private key) used to sign and decrypt.

The SignerKeys property holds the key used to verify a signature.

The RecipientKeys property holds the key used to encrypt.

Input and Output Properties

The component will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

SetOutputStream
OutputFile
OutputMessage: The output data is written to this property if no other destination is specified.

Property List

The following is the full list of the properties of the component with short descriptions. Click on the links for further details.


ASCIIArmor	Specifies whether to use ASCII armor to encode the output message.
ClearSignature	Specifies whether or not to create a cleartext signature.
CompressionMethod	The compression algorithm used.
DetachedSignature	Specifies whether or not to generate a detached signature when signing a message.
EncryptingAlgorithm	The encryption algorithm used when encrypting.
InputFile	The file to process.
InputMessage	The message to process.
Keys	A collection of keys used for cryptographic operations.
MessageHeaders	A collection of headers in the ASCII armored message.
OutputFile	The output file.
OutputMessage	The output message after processing.
Overwrite	Indicates whether or not the component should overwrite files.
RecipientKeys	The collection of keys belonging to the recipient of the message.
SignerKeys	The collection of keys belonging to the signer of the message.
SigningAlgorithm	The signature hash algorithm used when signing.

Method List

The following is the full list of the methods of the component with short descriptions. Click on the links for further details.


Config	Sets or retrieves a configuration setting .
Decrypt	Decrypts the message.
DecryptAndVerifySignature	Decrypts and verifies the signature of the message.
Encrypt	Encrypts the message.
GetRecipientInfo	Gets recipient information for an encrypted message.
Reset	Resets the component properties.
SetInputStream	Sets the stream from which the component will read data to encrypt or decrypt.
SetOutputStream	The stream to which the component will write the fully encrypted or decrypted OpenPGP data.
Sign	Signs the message.
SignAndEncrypt	Signs and encrypts the current message.
VerifySignature	Verifies the signature of the current message.

Event List

The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.


Error	Information about errors during data delivery.
KeyPassphrase	Fired if the passphrase of current key is incorrect or empty.
Progress	Fired as progress is made.
RecipientInfo	Fired for each recipient key of the encrypted message.
SignatureInfo	Fired during verification of the signed message.
Status	Shows the progress of the operation.
VerificationStatus	Fired after verification of the signed message.

Configuration Settings

The following is a list of configuration settings for the component with short descriptions. Click on the links for further details.


AllowEmptyInput	Whether to allow empty files for input.
AllowOldPacketType	Whether to allow the older encrypted packet type.
AutoSelectAlgorithms	Whether to automatically select algorithms when encrypting or signing.
AutoSelectCipherAlgorithm	Whether to automatically select the cipher algorithm when encrypting.
AutoSelectMACAlgorithm	Whether to automatically select the MAC algorithm when signing.
AutoSelectCompressionAlgorithm	Whether to automatically select the compression algorithm.
CompressionLevel	The Zip or Zlib compression level.
DetachedSignatureData	The detached signature.
FileName	The original name of the encrypted file.
PGPZipDir	The directory used when creating or extracting a PGP zip file.
RequireValidSignature	Specifies if an invalid signature is considered an error condition.
SplitHeaders	Controls whether ASCII Armor headers are split or not.
SymmetricPassphrase	The password used for symmetric encryption or decryption.
PublicKeyringFile	The file name of the public keyring file.
SecretKeyringFile	The file name of the secret keyring file.
AutoSelectDSASignatureHashAlgorithm	Whether or not to select a suitable signature hash algorithm automatically.
VersionHeader	The Version header value in the ASCII armored OpenPGP message.
LogLevel	Specifies the level of detail that is logged.
ProgressEventThreshold	The amount of data in bytes to process before firing the progress event.
ReadFromProgressEvent	Whether to read input data from inside the progress event.
WriteToProgressEvent	Whether to write output data so it is accessible from inside the progress event.
UseFipsCompliantAlgorithms	Restricts the usage to FIPS compliant algorithms only.
RecursiveDecryptMode	Whether the encrypted data should be decrypted recursively.
CodePage	The system code page used for Unicode to Multibyte translations.